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linux/arch/arm64
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Coiby Xu 2d97167d5e arm64: kexec_file: use more system keyrings to verify kernel image signature 
commit 0d519cadf7 upstream.

Currently, when loading a kernel image via the kexec_file_load() system
call, arm64 can only use the .builtin_trusted_keys keyring to verify
a signature whereas x86 can use three more keyrings i.e.
.secondary_trusted_keys, .machine and .platform keyrings. For example,
one resulting problem is kexec'ing a kernel image  would be rejected
with the error "Lockdown: kexec: kexec of unsigned images is restricted;
see man kernel_lockdown.7".

This patch set enables arm64 to make use of the same keyrings as x86 to
verify the signature kexec'ed kernel image.

Fixes: 732b7b93d8 ("arm64: kexec_file: add kernel signature verification support")
Cc: stable@vger.kernel.org # 105e10e2cf1c: kexec_file: drop weak attribute from functions
Cc: stable@vger.kernel.org # 34d5960af253: kexec: clean up arch_kexec_kernel_verify_sig
Cc: stable@vger.kernel.org # 83b7bb2d49ae: kexec, KEYS: make the code in bzImage64_verify_sig generic
Acked-by: Baoquan He <bhe@redhat.com>
Cc: kexec@lists.infradead.org
Cc: keyrings@vger.kernel.org
Cc: linux-security-module@vger.kernel.org
Co-developed-by: Michal Suchanek <msuchanek@suse.de>
Signed-off-by: Michal Suchanek <msuchanek@suse.de>
Acked-by: Will Deacon <will@kernel.org>
Signed-off-by: Coiby Xu <coxu@redhat.com>
Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2022-08-21 15:20:08 +02:00
..
boot arm64: dts: qcom: qcs404: Fix incorrect USB2 PHYs assignment 2022-08-17 15:14:19 +02:00
configs - Enable essential PMIC and regulatro drivers for MT8195. 2022-05-13 14:02:30 +02:00
crypto crypto: arm64/gcm - Select AEAD for GHASH_ARM64_CE 2022-08-17 15:14:38 +02:00
hyperv arm64: hyperv: Initialize hypervisor on boot 2021-08-04 16:54:36 +00:00
include kexec_file: drop weak attribute from functions 2022-08-17 15:16:08 +02:00
kernel arm64: kexec_file: use more system keyrings to verify kernel image signature 2022-08-21 15:20:08 +02:00
kvm KVM: arm64: Fix hypervisor address symbolization 2022-08-17 15:15:33 +02:00
lib S390: 2022-05-26 14:20:14 -07:00
mm arm64: kasan: Revert "arm64: mte: reset the page tag in page->flags" 2022-08-17 15:14:00 +02:00
net bpf, arm64: Clear prog->jited_len along prog->jited 2022-06-07 10:40:53 -07:00
tools arm64: errata: Remove AES hwcap for COMPAT tasks 2022-08-17 15:14:00 +02:00
xen xen: allow pv-only hypercalls only with CONFIG_XEN_PV 2021-11-02 08:11:01 -05:00
Kbuild kbuild: use more subdir- for visiting subdirectories while cleaning 2021-10-24 13:49:46 +09:00
Kconfig arm64: select TRACE_IRQFLAGS_NMI_SUPPORT 2022-08-17 15:14:09 +02:00
Kconfig.debug arm64: remove TEXT_OFFSET randomization 2020-06-15 13:10:59 +01:00
Kconfig.platforms arm64 updates for 5.19: 2022-05-23 21:06:11 -07:00
Makefile kbuild: factor out the common installation code into scripts/install.sh 2022-05-11 21:45:53 +09:00